间断注射_连续光源火焰原子吸收法测多级闪蒸排水中铜_镍_刘小骐_李艳苹_潘献辉

书书书间断注射/连续光源火焰原子吸收法测多级闪蒸排水中铜、镍刘小骐，李艳苹，潘献辉(国家海洋局天津海水淡化与综合利用研究所，天津300192)摘要:采用间断注射/连续光源火焰原子吸收法测定海水淡化多级闪蒸(MSF)排放水中铜、镍的含量，方法操作简便，水样过滤酸化后直接测定。结果显示，该方法无光谱干扰，采用基体匹配法后可以消除物理干扰，标准曲线线性良好，铜和镍的加标回收率分别为96%和106%，测试精密度分别为0．8%和2．1%。铜和镍测试的检出限分别为0．027mg/L和0．024mg/L，最低检测浓度分别为0．084mg/L和0．058mg/L。关键词:连续光源火焰原子吸收;多级闪蒸排放水;铜;镍中图分类号:TU992文献标识码:C文章编号:1000－4602(2014)02－0092－03DeterminationofCopperandNickelinDischargedWaterfromMSFbyCS-FAASCombinedwithIntermittentInjectionLIUXiao-qi，LIYan-ping，PANXian-hui(InstituteofSeawaterDesalinationandMultipurposeUtilization，SOA＜Tianjin＞，Tianjin300192，China)Abstract:CS-FAAScombinedwithintermittentinjectionwasusedtodeterminecopperandnickelindischargedwaterfromMSF．Thismethodwaseasytooperate，thesamplecouldbedirectlydeterminedafterbeingfiltratedandacidated．Theresultshowednospectralinterference，nophysicalinterferenceaf-termatrixmatchingandgoodlinearstandardcurve．Therecoveries，ＲSD，LODandLOQofcopperandnickelwere96%and106%，0．8%and2．1%，0．027mg/Land0．024mg/L，0．084mg/Land0．058mg/Lrespect